Self-propelled agricultural implement.



, A. WYLES, 1L

SELF PROPELLED AGRICULTURAL IMPLEMENT.

APPLICATIUN FILED SEPT.4. |914. HEIfEWE-D OCT. 5,'19l6.

A. WYLES, 1n, SELF PROPELLEQ AGRICULTURAL IMPLEMENL APPLxcATmN mso SEPTA, 1914. Rfnswzo non 5, ma.

Pnnted Nov. T, 1916.

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sur PnoPELLEn AGnrcuuuRAL Mmmm. Y A APPLICATION FLED SEPT-.4| 13514. RENEWED OCT. 5| 1916. E? @4.225. Patented Nov. 7, 15H6.

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1,204,225. Patented Nov. T, 1916. u 5 SHEETS-'SHEET 5.

ALBERT WYLES, JR., 0F LEEDS, ENGLAND.

SELF-FROPELLED AGRICULTURAL IMPLEMENT.

Specification of Letters Patent.

PatentedNov. 7, 1916.

Application led September 4, 1914, Serial No. 580,247. Benrwed October 5, 1916. Serial No. 124,007.

To all whom it may concern:

Be it known that I, ALBERT VVYLES, Jr., a. subject of the King of England, residing at Leeds, in the county of York, in England, have invented certain new and useful Improvements in Self-Propelled Agricultural Implements, of which the following is a specification.

This invention relates to self-propelled agricultural implements, and comprises novel features and combinations of parts whereby many operations required in the art of cultivating may be carried out in an efficient and simple manner with a minimum of trouble on the part of operators and with low consumption of power.

The invention comprises novel means whereby one or other of the running wheels may be raised or lowered in relation to the frame, and means whereby the frame may be raised by the motor power through the -transmission mechanism to the ruiming wheels for the purpose of carrying out certain evolutions in tilling operations.

The invention is hereinafter fully described and the novel features thereof speY cically pointed out in the appended claims, reference being made to the accompanying drawings, in which- Figure 1 is a side elevation, and Fig/2 'a sectional plan view of an implement having the present improvements applied thereto` Fig. 3 is an enlarged side elevation of parts shown in Fig. 1. Fig. 4 is an enlarged sees tional plan view of parts shown in Fig. '2.` Fig. 5 is' a further enlarged plan view of other parts shown in Fig. 2. Fig. 5 is a detail view of a toothed segment hereinafter described. Fig. 6 is a detail view of a modification.

Referring to Figs. 1 to 5, 1 designates the main frame of the implement which is supported byptwo running wheels 2 2a. forward of which is disposed the motor 3 which is so located as to substantially balance the weight of the traintl and implements '4 carried thereby rearward of the wheels. The said motor is suitablyl of the internal combustion kind of any conventional or appropriate type and includes a clutch 7 shown as operated by means of bell crank ,lever S, rod t) and hand lever 10 carried byone of thehandies 11, two of which are mounted at the rear of the frame 1 for controlling the implement by a man walking on the ground,

although other means of control may be adopted.

Secured to the side members of the frame 1 is a transverse frame member 12, to which there is pivotally connected by means of a head 1Qa a strong beam or frame consisting, of two members 13, 13l connected at their forward ends as by bolts 13" and at or adjacent their rear ends by two channel irons 13,` the latter being provided with holes 13" for passage of a connecting pin (not shown) to permit of lateral adjustment of the two parts 13, 13* in which case the bolts 13 will be unscrewed and a filling piece inserted between the said two parts at this point. The beam thus constituted carries the tilling tool or tools 4 shown in the present example as plow shares .secured to said beam in any conventional or approved manner. The head 12 and consequently the beam is mounted on said transverse member 12 by means of a vertical or substantiallyyertical pivot 154 which is adapted to engage one of a series of apertures 15 in the frame member 12, the pivot and consequently the beam being thus capable of lateral adjustment to vary the width of cut of the implement 'without altering the angle. Intermediate its ends the beam 13, 13*l is provided with an enlarged end or slide 16 and this slide moves between curved transverse guides 17. The beam 13, 13' may thus be moved about its pivot 15 at any angle in relation to the plane of the runningr wheels 2, 2 thus causing the too] or tools secured to said beam to coact with the ground when running inv a. furrow with the beam angularly adjusted to deect the forward part of the implement including the running wheels and thus enable the implement to be steered.

The slide 1F is shown as provided at its center with a slot 18 and the guides 17 are provided )vitlLa number of apertures 19 through one of which may be passed a pin 20 which is caused to engage the slot and thus hold the beam 13 13 in place. The beam und tool or tools carried thereby may thus be secured at any angle within the range of the apertures 1S), this method of securing.r the beam being adopted when not controlling thel implement by hand, the implement then being capable of self-steering, attention only being required for turning at the end 0f a furrow. The fact that the handles 11 are attached to the main frame l carrying the motor and provided with the running wheels and not to the tool supporting beam shows that the former is the part which receives the steering movements and not the tool.` Steering can thusmlx;V effected without moving the tool in 'tl'i'eYgi-iliid.

One or both of the running wheels 2 2 of the implement is or are mounted for verticahadjustment relatively to the frame 1, the construction shown comprising a radial arm 20 of bell crank formation p ivotally mounted on said frame by means oi' a boss 21 forming the bearing of a shaft 22. said arm having at its outer end a gudgeon 23 on which the wheel is mount-ed. The wheels are shown as driven from,the motor 3 by mechanism comprising a chain 24 driving a sprocket wheel 2b on a counter shaft 26 on which is also ymounted sliding pinions 27, 2S adapted to inesh with spur wheels 29.30 carried by the Vshaft 22, this shaft being provided at each outer end with a driving pinion 31 which meshes with an internally toothed ring 32a secured to the running' Wheel. It will thus be seen that the armQO is fulcrumed on the same axis as the driving pinion 31, thus enabling the wheel to he adJusted as to height ifi relation to the frame of the implement without affecting the driving1 transmission.

he shaft 22 is shown as provided with clutches 32 for giving a positive drive to both wheels and yetA permitting either to overrun the other for steering purposes. Either of these clutches can be held out of gear by levers 34 and rods 35 carried to the" rear of the implement and operable by hand levers 36. The sliding pinions 27, 28 are operated by means of levers 37 for controlling the speed through the gearing above de,- scribed. As aforesaid, the arm 20 is in the form of a bell crank and the arm thereof which does not carry the running wheel' is provided with a nut 38 with which engages the screw threaded end 39 of a.rod 40 which extends rearward and traverses a bracket 41 carried by the main frame 1, the rod being provided at its outer end with g hand Wheel 42 Abetween which and the bracket may be disposed a buffer spring 43.

The wheel carrying arm of the'l'ever, 2O

is enlarged to form a segment 44 having the pivotal axis 22 as its center, this segment being provided with two sets of ratchet teeth 45 and 46 disposed side by side and oppositely directed and with each of said sets of ratchet teeth there is adapted to enga ge a pawl 47 or 48 respectivelymounted on spindles 4i) and 50 suitahlgilsuplorted and having tails 51 and 52. The paw s are controlled so that only one of same can be in engagement ,with the ratchetl teeth at once, the means shown for this purpose consisting of a lever 53 pivoted at 54 between the pawls and adapted to bear against the tails of said pawls, the lever being actuated by a rod 55 extending rearward and being under the control ot' the operator as by means of a hand lever 56 having a. dog catch 57 engaging notches in a quadrant 59, whereby the lever may be held in its positions of adjustment.

By the means described it will be seen that either of the levers 20 can be manually rotated about its pivot 22 to raise or lower either or both of the wheels-rel: tively to the frame and thus to each other or n other words lower or raise the trame in relation to thefground and by suitably positioning the hand wheel 42 the limit of such raising or lowering can be varied at will, but in the working of the implement if the lever 20 were left free the weight of the imple: ient would cause the frame to fall and the wheels to occupy the upper position shown in Fig. l, but the extent of movement of the wheels can be controlled by said hand wheel 42 and connections to said lever 20, and when the Aengine 3 is in operation the force exerted by the transmission mechanism will. through the driving pinion 31 and internal ring 32 oil the wheel, cause each frame to rise and consequently bring the wheels into the lower osition, shown in Fig. 1 and by manipulatlng the lever 53, the pawls 47 and 48 relatively to the Wheel in question will be actuated to permit or prevent these movements as required by the operator. In the example of a plow assuming the land wheel 2 only provided with all the above described means of adjustment as shown, the furrow wheel 2 is in the lower(` position in the furrow and the land wheell is in its uppermost position or raised as fat'.

as the hand wheel 42 and parts controlled thereby will permit. The furrow Wheel 2 is however provided with a spindle 401and1 hand wheel 42l for manual adjustment only? At the end of the furrow bring said land wheel 2 to the lower position to correspond more or less to the position 'of the furrow wheel 2 whereby the frame is lifted and the nose of the plow or plows removed from the ground. On reaching the end of the furrow the operator, by means of the lever 56, rod 55, andllever 53 disengages the pawl` 48 from its ratchet teeth 45 and the engine power through the transmission mechanism as described raises the frame of the implement, whereupon the other pawl 47 will be engaged with its ratchet teeth 46 to hold the'segment 40 and consequently the frame in this raised position. The nose of the plow is now clear of the ground and the headland can he negotiated. On entering the return furrow the last mentioned pawl 47 is disengaged `andl the engine being stopped (or one of "the 4clutches 32 between the transmission and wheel disengaged) the frame of the impleit is necessary to; y i, 110" so that when the engine power is re-applied the parts are maintained in this position until said pawl is again released.

The principle above described of raising the implement frame by the engine power through the transmission mechanism to the running wheel or wheels holds good whether an internal ring and pinion as described or an external gear Wheel and pinion are used,

provided that said pinion is located Ain front of the wheel axis. If said pinion were disposed behind the wheel axis the pressure exerted by the intermeshing. gearing would be in the wrong'directio'n and it would be necessary to reverse the motor in order to raise the frame. The tools ma thus be lifted to the surface of the groun on reaching the end of a. furrow without stopping the implement and then by drivling one ground wheel oiil by manipulating one or other of -the clutches the implement can be swung around upon the other wheel as a pivot.

The aforesaid clutch 7 may be arranged within and carries a pulley by means of a sleeve 61 carried by ball bearings 62, said pulley bein adapted to drive as by a belt all forms o farm machinery, such as chaff cutters, sheep shearers, pumps, hay elevators and the like. Two important effects are obtained by this construction, viz. all stress set up inl the pull on the belt is entirely removed from the engine bearings ,and the belt drive is operated through the clutch.

Fig. 6 shows a modification in which the radial arm 20 mounted on the shaft 22 is provided with a link 63 which is connected to a slidable rack G-l guided on a bracket 65 mounted on the frame by means of a pin 66 on the bracket passing through a slot 67 in the rack. The 'said rack is rovided on opposite sides with ratchet teet 68 of opposite direction with each of which there is adapted to engage a pawl 69 pivoted to the bracket. The extent of movement of the rack is limited by means of a pin or the like adapted to be inserted in one of a series .of holes TO in the bracket.

What l claim as my invention and desire to. securejby Letters Patent of the United States is 1. In a self-propelled agricultural implement the combination of a frame, a motor carried thereby, a road Wheel driven by said motor and mounted for vertical adjustment in relation to the frame. and means whereby* the force of the motor driving said ivheel ma v at will be caused to automatically raise said frame relatively to said wheel by the reaction othe driving mechanism thereon.

2. ln a self-propelled agriculturalimplement. the combination of a frame, a motor carried thereby, a road Wheel driven by said motor and mounted for vertical adjustment in relation to the frame, transmission mechanism from the motor to said wheel so dis-` posed as to exert a reactionary lforce onsaid wheel to raise the frame relatively thereto,

and means to hold the frame in its raised or lowered positions of adjustment.

3. In a self-propelled agricultural implement, the combination of a frame, a motor carried thereby, a. road wheel driven by said motor and mounted for vertical adjustment in relation to the frame, means whereby the force of the motor driving said Wheel may at will be caused to automatically raise said frame relatively to said wheel by the reaction of the driving mechanism thereon, and adjustable means for determining the degree of relative movement between the frame and said road Wheel.

4. In a self-propelled agricultural implement, the combination of a frame, a motor carried thereby, a road wheel driven by said motor and mounted for vertical adjustment in. relation to the frame, transmission mechanism from the motor to said wheel so disposed as to exert a reactionary force on said wheel to raise the frame relatively thereto, means to hold the frame in` -its raised or lowered positions of adjustment, and adjustableA means for determining the degree of relative movement between the frame and said road wheel.

5. A self-propelled agricultural implement comprising a trame, a motorcarried thereby, a road Wheel mounted -for movement relatively to said frame in a vertical direction, transmission mechanism from said motor to said Wheel including intermeshing gearing adapted to exert a lifting effort on the frame, an adjustable s top for limiting the degree of movement of the wheel in relation to the frame, a'nd means to `hold the frame in its raised or lowered position.

6. ln a self-propelled agricultural implement, a road ivheel, an angularl'v movable lever 'supporting said wheel at the free end of said lever, an adjustable stop adapted to limit the angular movement of said lever, ratchet teeth of opposite direction disposed at the free end of said lever.y and paivls coacting with said ratchet teeth to maintain said arm in its positions of angular adjustment.

7. A self-propelled agricultural implement comprising a frame, a motor carried thereby, a road wheel mounted for movement relatively to said frame in a vertical direction, transmission mechanism from said motor to said wheel including intermeshing gearing adapted to exert a lifting effort on the frame, an adjustable stop for limiting the degree of movement of the Wheel in relation to the frnme,xneans to hold the frame in its raised or lowered position, and means permitting engagement of only one pawl at n time with its respective ratchet teeth.

`\ 8. ln a self propelled lagricultural implement, :L rond wheel, :m angularly movable. lever supporting Suid wheel at the -free end of said lever, un adjustable stop adapted to limit the :mgulur movement of said lever, ratchet teeth of opposite direction disposed 1,2oig225 'at the free end of said lever, pawls co-acting with said ratchet teeth to maintain said arm in its positions of angular adjustment smdls speeiiention in the presence of two Witnesses. 20

ALBERT W YLES, Jn. Witnesses z Y ERNALD SIMPSON MosELEY, MALCOLM SMEDHURST. 

